fix: cargo fmt single-line import and wallet.ts type error

Condense test.rs import to single line per cargo fmt, fix
freighter.isConnected() return type (boolean, not object).

Author: big14way

contracts/sorosave/src/test.rs

@@ -1,8 +1,4 @@
-use soroban_sdk::{
-    testutils::Address as _,
-    token::StellarAssetClient,
-    Address, Env, String,
-};
+use soroban_sdk::{testutils::Address as _, token::StellarAssetClient, Address, Env, String};
 
 use crate::types::GroupStatus;
 use crate::{SoroSaveContract, SoroSaveContractClient};

frontend/src/lib/wallet.ts

@@ -2,8 +2,8 @@ import freighter from "@stellar/freighter-api";
 
 export async function isFreighterInstalled(): Promise<boolean> {
   try {
-    const result = await freighter.isConnected();
-    return result.isConnected;
+    const connected = await freighter.isConnected();
+    return connected;
   } catch {
     return false;
   }